The document contains 8 psychology questions related to substance use and addiction. The questions address topics like the effectiveness of legislative attempts to control illicit drug use, social problems resulting from substance use issues, the neurochemistry of drugs and neurotransmitters, the brain's reward pathway, regulation of caffeine, differences between crack and powder cocaine, physiological effects of benzodiazepines, and the distinction between using and abusing prescribed opiates. The questions are intended to be answered individually in 150-200 words each with a citation.